Straightway valve.



No.833,:939. PATENTED 001'. 2a, 1906.

. w. T. RIDER. I

STRAIGHTWAY' VALVE.

APPLIOATION FILED MAR-10. 1905.

Witnesses UNITED STATES PATENT OFFICE. WILLIAM T; RIDER, OFOOXSAGKIE, NEW YORK.

STRAIGHTWAY VALVE.

To all. whm.-it may concern/.2

.Beit known that I, WILLIAM T. RIDER, a citizen of the United States, residing at Coxsackie, in the county of Greene and State of New York, have invented certain new and useful Improvements in Straightway Valves; and I do, declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains vto make and .use the same, reference being had to.the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in valves; and the object of the invention is to produce an adjusting means for a valve in which the adjusting-nut hangs free upon a valve-stem and in which the nut will always remain in line with the lugs upon valve-disks and free to act with the disk at any time, while the latter find their proper seating-places in any positions, thereby producing a means whereby the disk valves may be tightly seated even in the event'of the distortion of the seats incident to any strain which may come upon the valve casing. Heretofore it has been common in the art in making valves of this nature to provide combined nuts and rockers which fit into pockets upon the extreme circle of the disk, and when with a stem-nut the parts are placed together a top and a bottom adjustment is aiforded, but no side adjustment.

:The rockers of this style of valves are apt to slip from their pockets between the disks, and it is to obviate this trouble and to dispense with the rocker combinations in straightway gate valves that I produce my novel valve and means for adjusting the same. In the present invention the adjustment is direct from the center of the disks by the lugs on the adjusting-nut comin in contact with the bottoms of 'slots in the 'sks, which are on a center line with the lugs on the nut, which practically is the only positive adjusting-point.

My invention is illustrated in the accompanying drawings, in which 'gure 1 is a sectional view through my improved valve and casing. Fig. 2 is a sectional view showing parts'in elevation. Fig. 3 is an enlarged perspective view of one of the valve-disks, and Fig. 4 is an enlarged perspective view of the valve-nut. a sectional view showing the manner, in which Fig. 5 is selves to distorted seats.

Patented Oct. 23, 1906.1

thevalve-disks automatically adjust them-- Reference now being had to the details of 1 I the drawings by letter, A designates a valvecasing having threaded portionsfor connec-' tion with pipes and valve-seats A about the,

marginal edges of openings leading from the central chambered portion of the casingto the openings to which pipes are adapted to be connected. Said valve-seats are at in-,-

clinations to each other, and A? designates a 1..

cap havin threaded connection with the casing an provided with a suitable plug through which the stem A passes.

C designates a conical-shaped adjustingnut having a threaded hole therein for the reception of the threaded portion of the stem A Elongated lugs 0 project from said valve-nut C at positions diametrically opposite and are adapted to engage the slots B formed in the concaved surfaces of the disk valves B. Said disk valves B are flat upon their outer surfaces and each is provided with lugs B at positions diametrically opposite, which lu s cooperate with the parallel ribs A formed upon the inner surfaces of the casing to guide the disk valves when bein inserted within the casin Each of sai disk valves has a concave recessed portion B one end of which is closed and the other end opening through the edge of the valve. It will be noted that the shapes of the recesses in said disk valves conform to the shape of said adjusting-nuts, and that the lugs' C are allowed to have a slight play in the recesses B and that when the two disk valves are adjusted in position within the casing in the manner shown'in Fig. 1 of the drawings a suitable space intervenes between the two valves, thereby allowing a slight axial rocking movement to the valves in order that both valves may be seated tightly in the event of the two seats being distorted, which distortion will frequently be causedby the screwing of the pipe connections to the valvecasing. Were it not for this axial rocking of the valve-disks in order that the valves may conform to the seats it has been found that and a short valve is afforded and one which will afford a practical and absolutely-tight gate-valve with a perfect adjustment upon any strain that may be brought to bear upon the body or casing of the valve. I have also found that by the provision of the features of my invention the valve-disks will not bind in any way, as when seated they are free from the ribs upon the casing, and the valves will relieve themselves from the faces in the body at once under pressure, which is not the case with the ordinary construction of gate-valves.

What I claim is In combination with a valve-casing having inclined valve-seats and guide-ribs upon the inner surface thereof, disk valves, the outer faces of which are inclined and their inner faces recessed, the inner end of each recess bein closed and each recess provided with an e ongated slot, lugs projecting from the have an axial rocking movement, whereby their outer faces may adjust themselves to the valve-seats if distorted or otherwise, as set forth.

In testimony whereof I hereunto afiix my signature in presence of two Witnesses.

WILLIAM T. RIDER.

Witnesses FREDERICK LYoNs, ROSCOEMO. HALLooK. 

